The three-level ZVS-PWM dc-to-dc converter
- Federal Univ., Santa Maria (Brazil)
- Federal Univ. of Santa Catarina, Florianopolis (Brazil). Power Electronics Lab.
A new high frequency dc-to-dc converter for high voltage and high power is introduced in this paper, which features zero-voltage-switching, operation at constant frequency, regulation by pulsewidth modulation, and low rms current stress upon power switches. Its greatest attribute, in comparison with the full-bridge (FB-ZVS-PWM) converter, is that the voltage across the switches is half of the input voltage. This property is achieved due to the employment of a three-level leg in place of the conventional two-switch leg. Operation, analysis, design procedure and example, and simulation are presented. A prototype operating at 100 kHz, rated at 600 V input voltage, and 1.5 kW output power and 25 A output current has been fabricated and successfully tested in the laboratory.
- OSTI ID:
- 143876
- Journal Information:
- IEEE Transactions on Power Electronics, Journal Name: IEEE Transactions on Power Electronics Journal Issue: 4 Vol. 8; ISSN ITPEE8; ISSN 0885-8993
- Country of Publication:
- United States
- Language:
- English
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